FEP pipe extrusion molding machine

Abstract

The utility model relates to the technical field of extruders, and discloses an FEP pipe extrusion molding machine which comprises a first base, a second base and a main control box, the first base and the second base are fixedly connected with each other, a rack is fixedly installed at the top of the first base, a motor is fixedly installed at the top of the second base, and the motor is electrically connected with the main control box through a connecting wire. A speed reducer is fixedly installed on the second base located on one side of the motor, and the output end of the motor is in transmission connection with the input end of the speed reducer through a belt transmission mechanism. The die head is arranged on one side of the plasticizing pipe and composed of the connecting flange, the forming pipe, the filter plate, the flow divider, the die core, the limiting ring and the like, so that rapid assembly of the flow divider and the die core can be achieved, the later maintenance efficiency of equipment is improved, meanwhile, the forming pipe and the die core can be rapidly replaced, and the cost is reduced. The wall thickness or diameter of the extrusion pipeline can be rapidly adjusted according to production requirements, and the adjustment convenience of equipment production parameters is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of extruders, in particular to an FEP tube extrusion molding machine. Background Art

[0002] When producing FEP tubes, the extruder feeds FEP (fluorinated ethylene propylene copolymer) resin particles into the mold at a constant pressure, temperature and power head speed, and melts them into a tubular structure. During this process, the extruder can ensure that the FEP material is in a completely uniform plasticized state, and the product is extruded through the screw's conveying, compacting and further melting;

[0003] Therefore, the extruder plays a molding role in the production process of FEP tubes. When the existing extruder extrude the molten resin particles, it needs to contact the die head at one end of the extruder, so that the molten resin particles are extruded and guided and output in a tubular structure. The die head is a key component of extrusion molding, and its internal precise diverter is responsible for evenly distributing the molten material to ensure the quality of the extruded product. However, the complex assembly structure requires a lot of time and manpower for disassembly and assembly during replacement or maintenance, which not only affects production efficiency, but may also cause component damage due to improper operation. At the same time, it also brings certain inconveniences to the adjustment of the diameter and wall thickness of the extruded pipe. Utility Model Content

[0004] The utility model aims to provide a FEP tube extrusion molding machine, which can effectively solve the problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A FEP tube extrusion molding machine comprises a first base, a second base and a main control box, wherein the first base and the second base are fixedly connected to each other, a frame is fixedly installed on the top of the first base, a motor is fixedly installed on the top of the second base, and the motor is electrically connected to the main control box through a connecting line, a reducer is fixedly installed on the second base located on one side of the motor, the output end of the motor and the input end of the reducer are connected through a belt transmission mechanism, a plasticizing tube is fixedly installed on the frame, a feed hopper is fixedly installed on the plasticizing tube, a plurality of heaters are also fixedly installed on the outside of the plasticizing tube, a die head is arranged on the side of the plasticizing tube away from the feed hopper, the die head comprises a connecting flange and a molding tube, the connecting flange is fixedly installed on one side of the plasticizing tube, a filter plate is movably installed between the plasticizing tube and the connecting flange, the molding tube is movably installed on one side of the connecting flange, a diverter is movably installed in the connecting flange and the molding tube, and a mold core is movably installed on one side of the diverter.

[0007] As a further preferred solution of the present invention, a protective cover is fixedly installed on the frame located outside the heater.

[0008] As a further preferred solution of the utility model, a mounting groove is provided on one side of the plasticizing tube.

[0009] As a further preferred embodiment of the present invention, a mounting groove is also provided on the connecting flange relative to the plasticizing tube, a fixing seat is fixedly installed on the side of the connecting flange opposite to the mounting groove, a first screw groove is provided on the inner side of the fixing seat, and a sealing groove is provided on the inner side of the first screw groove;

[0010] Based on this, by setting the fixing seat and opening the first screw groove and the sealing groove in the fixing seat, the quick assembly of the forming tube can be achieved.

[0011] As a further preferred embodiment of the present invention, a guide cone is fixedly installed on one side of the filter plate, a positioning groove is provided in the guide cone, and the filter plate is inserted and installed between two installation grooves on the opposite side of the plasticizing pipe and the connecting flange;

[0012] Based on this, a guide cone is set on one side of the filter plate to guide the medium passing through the filter plate and provide installation conditions for the diverter.

[0013] As a further preferred embodiment of the utility model, a diverter groove is provided in the forming tube, a mouth groove is provided on one side of the diverter groove, a sealing ring and a hexagonal block are fixedly installed on the outside of the forming tube, the forming tube on one side of the sealing ring is threadedly connected in the first screw groove, and the sealing ring is inserted and installed in the sealing groove.

[0014] As a further preferred embodiment of the present invention, a limiting groove is provided on one side of the diverter, the longitudinal section of the limiting groove is a regular hexagon, a second screw groove is provided on one side of the limiting groove, and a limiting ring is fixedly installed on the outer side of the diverter.

[0015] As a further preferred embodiment of the present invention, four positioning seats are fixedly installed on the inner side of the limiting ring, the limiting ring is inserted and installed on the outer side of the diverter through the four positioning seats and fixed by screws, the diverter is inserted and installed in the diverter groove through the limiting ring, and one side of the diverter is also inserted and installed in the positioning groove;

[0016] Based on this, a limiting ring is installed on the outside of the diverter, so that the diverter can be inserted and installed in the forming pipe and cooperate with the guide cone to achieve rapid positioning and installation in the forming pipe and the connecting flange.

[0017] As a further preferred solution of the present utility model, a counterbore is provided on one side of the die core, a limiting block is fixedly installed on the other side of the die core, a connecting screw is inserted and installed in the counterbore, the limiting block is inserted and installed in the limiting groove, and one side of the connecting screw is threadedly connected in the second thread groove, and the die core is placed in the mouth groove;

[0018] Based on this, through the detachable die core setting, the rapid adjustment of the pipe wall thickness can be realized, and the rapid adjustment of the extrusion pipe diameter can also be realized in cooperation with the formed pipe.

[0019] Compared with the prior art, the present utility model has the following beneficial effects:

[0020] An FEP pipe extrusion molding machine of the present utility model is provided with a die head on one side of the plasticized pipe, and the die head is composed of components such as a connecting flange, a formed pipe, a filter plate, a diverter, a die core, and a limiting ring, so that the rapid assembly of the diverter and the die core can be realized, which is beneficial to improving the maintenance efficiency of the equipment in the later stage. At the same time, the formed pipe and the die core that can be quickly replaced are provided, and the wall thickness or diameter of the extrusion pipe can be quickly adjusted according to production requirements, improving the convenience of adjusting the production parameters of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic diagram of the main structure of the present utility model;

[0022] Figure 2 is a cross-sectional view of the die head of the present utility model;

[0023] Figure 3 is a cross-sectional view of the filter plate of the present utility model;

[0024] Figure 4 is a schematic diagram of the split structure of the diverter, the die core and the limiting ring of the present utility model.

[0025] In the figure: 1. First base; 2. Second base; 3. Main control box; 4. Frame; 5. Motor; 6. Reducer; 7. Plasticized pipe; 8. Feeding hopper; 9. Heater; 10. Die head; 11. Connecting flange; 12. Formed pipe; 13. Filter plate; 14. Diverter; 15. Die core; 16. Protective cover; 17. Installation groove; 18. Fixed seat; 19. First thread groove; 20. Sealing groove; 21. Flow guiding cone; 22. Positioning groove; 23. Sealing ring; 24. Hexagonal block; 25. Diverting groove; 26. Mouth groove; 27. Limiting groove; 28. Second thread groove; 29. Limiting ring; 30. Positioning seat; 31. Counterbore; 32. Limiting block; 33. Connecting screw. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] In order to make the technical means, creative features, achieved purposes and effects of the present utility model easy to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0027] Example 1: Figures 1-4 As shown, the utility model provides an FEP tube extrusion molding machine, including a first base 1, a second base 2 and a main control box 3, the first base 1 and the second base 2 are fixedly connected to each other, a frame 4 is fixedly installed on the top of the first base 1, a motor 5 is fixedly installed on the top of the second base 2, and the motor 5 is electrically connected to the main control box 3 through a connecting line, a reducer 6 is fixedly installed on the second base 2 located on one side of the motor 5, the output end of the motor 5 is connected to the input end of the reducer 6 through a belt transmission mechanism, and a plasticizing tube 7 is fixedly installed on the frame 4 A feed hopper 8 is fixedly installed on the plasticizing tube 7, and a plurality of heaters 9 are also fixedly installed on the outer side of the plasticizing tube 7. A die head 10 is arranged on the side of the plasticizing tube 7 away from the feed hopper 8. The die head 10 includes a connecting flange 11 and a molding tube 12. The connecting flange 11 is fixedly installed on one side of the plasticizing tube 7. A filter plate 13 is movably installed between the plasticizing tube 7 and the connecting flange 11. The molding tube 12 is movably installed on one side of the connecting flange 11. A diverter 14 is movably installed in the connecting flange 11 and the molding tube 12, and a mold core 15 is movably installed on one side of the diverter 14.

[0028] A protective cover 16 is fixedly mounted on the frame 4 located outside the heater 9 .

[0029] Example 2: Figures 2-4As shown, a mounting groove 17 is provided on one side of the plasticizing tube 7, and a mounting groove 17 is also provided on the side of the connecting flange 11 opposite to the plasticizing tube 7. A fixing seat 18 is fixedly installed on the side of the connecting flange 11 opposite to the mounting groove 17, and a first screw groove 19 is provided on the inner side of the fixing seat 18, and a sealing groove 20 is provided on the inner side of the first screw groove 19. Based on this, by setting the fixing seat 18 and providing the first screw groove 19 and the sealing groove 20 in the fixing seat 18, the rapid assembly of the forming tube 12 can be achieved. A guide cone 21 is fixedly installed on one side of the filter plate 13, and a positioning groove 22 is provided in the guide cone 21. The filter plate 13 is inserted and installed between the two mounting grooves 17 on the opposite side of the plasticizing tube 7 and the connecting flange 11. Based on this, a guide cone 21 is provided on one side of the filter plate 13, and the medium passing through the filter plate 13 can be guided and installation conditions for the diverter 14 can be provided. A diverter groove 25 is provided in the forming tube 12, and a mouth groove 26 is provided on one side of the diverter groove 25. A sealing ring 23 and a hexagonal block 24 are fixedly installed on the outside of the molded tube 12, respectively. The molded tube 12 located on one side of the sealing ring 23 is threadedly connected to the first screw groove 19, and the sealing ring 23 is inserted and installed in the sealing groove 20. A limiting groove 27 is provided on one side of the diverter 14, and the longitudinal section of the limiting groove 27 is a regular hexagon. A second screw groove 28 is provided on one side of the limiting groove 27. A limiting ring 29 is fixedly installed on the outside of the diverter 14, and four positioning seats 30 are fixedly installed on the inside of the limiting ring 29. The limiting ring 29 is inserted and installed on the outside of the diverter 14 through the four positioning seats 30 and fixed by screws. The diverter 14 is inserted and installed in the diverter groove 25 through the limiting ring 29, and one side of the diverter 14 is also inserted and installed in the positioning groove 22. Based on this, the limiting ring 29 is installed on the outside of the diverter 14, so that the diverter 14 can be inserted and installed in the molded tube 12 and cooperate with the guide cone 21 to achieve rapid positioning and installation in the molded tube 12 and the connecting flange 11;

[0030] Example 3: Figure 2 , Figure 4 As shown, a countersunk hole 31 is opened on one side of the mold core 15, and a limit block 32 is fixedly installed on the other side of the mold core 15. A connecting screw 33 is inserted and installed in the countersunk hole 31, and the limit block 32 is inserted and installed in the limit groove 27, and one side of the connecting screw 33 is threadedly connected in the second screw groove 28, and the mold core 15 is placed in the mouth groove 26. Based on this, through the detachable mold core 15 setting, the wall thickness of the pipeline can be quickly adjusted, and the forming tube 12 can also be used to achieve rapid adjustment of the diameter of the extruded pipeline.

[0031] It should be noted that the present utility model is a kind of FEP pipe extrusion molding machine. When installing the molding pipe 12, the molding pipe 12 with the required diameter notch 26 can be prepared first, and the die core 15 adapted to it can be selected. Then, the limit block 32 on one side of the die core 15 is inserted and installed in the limit groove 27 on one side of the diverter 14, and the connecting screw 33 is inserted and installed in the counterbore 31. At the same time, one side of the connecting screw 33 is threadedly connected to the second thread groove 28. Subsequently, the limit ring 29 is inserted and installed on the outside of the diverter 14 through the four positioning seats 30 on the inner side, and the limit ring 29 is further fixed on the outside of the diverter 14 by screws. Then, the diverter 14 is inserted and installed in the diversion groove 25 inside the molding pipe 12, and the die core 15 is inserted and installed in the notch 26. At the same time, the outside of the limit ring 29 on the outside of the diverter 14 is extruded in the diversion groove 25. Subsequently, one side of the molding pipe 12 can be gradually screwed into the first thread groove 19. Thus, as one side of the molding pipe 12 is gradually screwed into the first thread groove 19, the molding pipe 12 drives one side of the diverter 14 to be gradually inserted into the positioning groove 22 on one side of the diversion cone 21 through the diversion groove 25 and the limit ring 29, and the sealing ring 23 is inserted and installed in the sealing groove 20, thereby completing the rapid installation of the molding pipe 12. When adjusting the extrusion wall thickness of the pipeline in the later stage, the disassembly and assembly of the die core 15 on one side of the diverter 14 can be directly realized by rotating the connecting screw 33.

[0032] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art of this industry should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A FEP tube extrusion molding machine, characterized in that: The invention comprises a first base (1), a second base (2) and a main control box (3), wherein the first base (1) and the second base (2) are fixedly connected to each other, a frame (4) is fixedly mounted on the top of the first base (1), a motor (5) is fixedly mounted on the top of the second base (2), and the motor (5) is electrically connected to the main control box (3) via a connecting line, a reducer (6) is fixedly mounted on the second base (2) located on one side of the motor (5), an output end of the motor (5) and an input end of the reducer (6) are connected via a belt transmission mechanism, a plasticizing tube (7) is fixedly mounted on the frame (4), and a material feeding hopper is fixedly mounted on the plasticizing tube (7) (8), a plurality of heaters (9) are fixedly mounted on the outside of the plasticizing tube (7), a die head (10) is arranged on the side of the plasticizing tube (7) away from the feed hopper (8), the die head (10) comprises a connecting flange (11) and a forming tube (12), the connecting flange (11) is fixedly mounted on one side of the plasticizing tube (7), a filter plate (13) is movably mounted between the plasticizing tube (7) and the connecting flange (11), the forming tube (12) is movably mounted on one side of the connecting flange (11), a flow divider (14) is movably mounted in the connecting flange (11) and the forming tube (12), and a mold core (15) is movably mounted on one side of the flow divider (14).

2. A FEP tube extrusion molding machine according to claim 1, characterized in that: A protective cover (16) is fixedly mounted on the frame (4) located outside the heater (9).

3. A FEP tube extrusion molding machine according to claim 2, characterized in that: A mounting groove (17) is provided on one side of the plasticizing tube (7).

4. The FEP tube extrusion molding machine according to claim 3, characterized in that: The connecting flange (11) is also provided with a mounting groove (17) on one side relative to the plasticizing tube (7); a fixing seat (18) is fixedly mounted on the side of the connecting flange (11) opposite to the mounting groove (17); a first screw groove (19) is provided on the inner side of the fixing seat (18); and a sealing groove (20) is provided on the inner side of the first screw groove (19).

5. The FEP tube extrusion molding machine according to claim 4, characterized in that: A guide cone (21) is fixedly mounted on one side of the filter plate (13), a positioning groove (22) is provided in the guide cone (21), and the filter plate (13) is inserted and mounted between two mounting grooves (17) on the opposite side of the plasticizing pipe (7) and the connecting flange (11).

6. The FEP tube extrusion molding machine according to claim 5, characterized in that: The forming tube (12) is provided with a flow dividing groove (25), one side of which is provided with an opening groove (26), and a sealing ring (23) and a hexagonal block (24) are respectively fixedly mounted on the outside of the forming tube (12), the forming tube (12) located on one side of the sealing ring (23) is threadedly connected in the first screw groove (19), and the sealing ring (23) is inserted and mounted in the sealing groove (20).

7. The FEP tube extrusion molding machine according to claim 6, characterized in that: A limiting groove (27) is provided on one side of the flow divider (14), the longitudinal section of the limiting groove (27) is a regular hexagon, a second screw groove (28) is provided on one side of the limiting groove (27), and a limiting ring (29) is fixedly mounted on the outside of the flow divider (14).

8. The FEP tube extrusion molding machine according to claim 7, characterized in that: Four positioning seats (30) are fixedly mounted on the inner side of the limiting ring (29); the limiting ring (29) is inserted and mounted on the outer side of the flow divider (14) through the four positioning seats (30) and fixed by screws; the flow divider (14) is inserted and mounted in the flow divider groove (25) through the limiting ring (29); and one side of the flow divider (14) is also inserted and mounted in the positioning groove (22).

9. The FEP tube extrusion molding machine according to claim 8, characterized in that: A countersunk hole (31) is formed on one side of the mold core (15), a limit block (32) is fixedly installed on the other side of the mold core (15), a connecting screw (33) is inserted into the countersunk hole (31), the limit block (32) is inserted into the limit groove (27), and one side of the connecting screw (33) is threadedly connected to the second screw groove (28), and the mold core (15) is placed in the opening groove (26).

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